9514 1404 393
Answer:
6300 m³
Explanation:
The volume of the pyramid is given by the formula ...
V = 1/3s²h
where s is the side length of the square base, and h is the height.
V = 1/3(30 m)²(21 m) = 6300 m³
The approximate volume of the pyramid is 6300 m³.